Requirements:
Store Stacker is a server-based application. You need to install the script on your server or host account. So, you need at least one domain and a hosting account that supports:

• *nix box (Linux, Free BSD, …)
• PHP (version 5 for latest Amazon integrated plug-in)
• MySQL
• Zend Optimizer

Might not work at this time with GoDaddy, Yahoo! or Bravenet hosting accounts. I say might because often users don’t know how to add Zend or how to set up cron jobs on servers. I was told it would not run on 1and1 and not only does it run fine, but I started seeing results the first day.

I can vouch first-hand that StoreStacker works  perfectly with 1and1 (manually install Zend) and HostGator (Zend pre-installed) hosting accounts.  Friends using SiteStacker with Hostmonster  (Free Domain, Free Setup, Host Unlimited Domains $6.95) are also pleased.

User Requirements: Basic understanding of HTML, FTP, and Cron Jobs.

Pros:

1. Automates the tedious task of pulling in products and content from multiple sources.  You can literally pull in thousands of products or pages in minutes with little effort.
2. Products can be updated automatically via cron jobs. Nice touch!
3. Built-in SEO options are very good.
4. Unlimited number of installs (sites).
5. You can use StoreStacker to build a stand-alone site or insert the products into existing static sites or sites built on other platforms such as WordPress,  Joomla, Drupal, etc..
6. Affiliate links are embedded and automatically cloaked.
7. The administrative interface is simple and mostly intuitive.
8. Built-in widget creation, Adsense-like ads to place in outside sites.
9. Pull in targeted YouTube videos with included plugin.
10. The RSS content plugin ($25) is great for adding relevant content about your niche.
11. SiteStacker easily lets you add static pages to your site for adding extra or fresh content.

Cons:

1. The videos are good for beginners, and there is some help available in the forum, yet an FAQ or Knowledge Base would be really helpful. You can always send private email to support, But I prefer to browse and find my own answers. I don’t like to wait!
2. The 14 templates are okay, but rudimentary. More layouts would be useful. Changing colors and headers and images for included templates is not difficult. Changing layouts requires much more skill as it uses the Smarty template engine.
3. The Amazon categories do not match the included plug-in categories. Perhaps the Amazon API does not detail all of the categories? So far, I have noticed the following categories do not exist in the software; Toys and Games, Musical Instruments, Automotive. Here is the list of top-level of categories included in StoreStacker;All
   Books
   DVD
   Home Improvement
   Music
   Video
   Cell Phone & Services
   Software
   Electronics
   Magazines
   Apparel
   Home & Garden
   Health & Personal Care
   Jewelry
   Watches
   Skin Care
   Video Games
   Kitchen & Housewares
   Outdoor Living Features
   Electronics Features
   Sports & Outdoors
   Baby Store
   MP3 Downloads

Installation:
Not difficult if you are familiar with FTP. Very good Step-by-step installation video/documentation.

Documentation:
Video tutorials are available on the SiteStacker website for installation, overview, shop setup, categories setup, product manipulation, template manipulation, seo rules, and more.

What you also need to know:

1. Build in place! Moving a site from one domain or sub-domain to another is difficult to impossible. Requires multiple changes in database and files.
2. You will install the SiteStacker script and connect to a MySQL database for each site (store) you are building.
3. To access the back-end of your StoreStacker site, type http://yourdomain/admin.php
4. Add Google Analytics code to your template footer.tpl file. Place the google script inside literal tags (that you add) at the bottom, before  the existing </body></html>  tags.

   {literal}
   ..google analytics code..
   {/literal}
   </body></html>

5. When categories at Amazon do not match the categories in StoreStacker, you can use the ALL category and try to refine your search terms to pull the products you want. Results vary from good to poor. Remember if you select the ALL category, that you must also put your search term in the lower box (will have the word ALL in it) as well.  note: This annoyance seems to be caused by a combination of  changes to the Amazon API that are not announced.  I have emailed the developers and let’s see when they plan to update this latest batch of changes.
   
6. Updating your software is a clunky manual prospect. The developers promise to automate that process in the future.
7. Useful videos and tips
   How to install Store Stacker onto a WordPress Blog